P89LV51RD2BA PHILIPS [NXP Semiconductors], P89LV51RD2BA Datasheet - Page 51

• Manufacturer Part Number: P89LV51RD2BA
• Description: 8-bit 80C51 3 V low power 64 kB Flash microcontroller with 1 kB RAM
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
9397 750 14342
Product data
Fig 23. PCA capture mode.
CEXn
CF
-
7.8.2 16-bit software timer mode
ECOMn
CR
0
If the CCFn bit for the module in the CCON SFR and the ECCFn bit in the CCAPMn
SFR are set then an interrupt will be generated.
The PCA modules can be used as software timers
ECOM and MAT bits in the modules CCAPMn register. The PCA timer will be
compared to the module’s capture registers and when a match occurs an interrupt
will occur if the CCFn (CCON SFR) and the ECCFn (CCAPMn SFR) bits for the
module are both set.
CAPPn
-
CAPNn
CCF4
Rev. 04 — 02 December 2004
MATn
CCF3
0
(to CCFn)
capture
TOGn
CCF2
0
PWMn
CCF1
0
P89LV51RB2/RC2/RD2
ECCFn
CCF0
8-bit microcontrollers with 80C51 core
CCON
(C0h)
CCAPMn, n = 0 to 4
(DAH to DEH)
CCAPnH CCAPnL
PCA timer/counter
(Figure
CH
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
interrupt
PCA
24) by setting both the
CL
002aaa538
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